
62Chapter 4 Managing the Passport 8683POS Module
5Select the SonetClockSource, either line or internal.
If two Passport POS Modules are operating directly (that is, connected back to back, without any intervening Sonet equipment), one port must provide the clock source. Set the clock source of one port to internal, and the opposite port must be set to line.
6Select other SONET parameters.
7Click Apply.
8
Configuring bridging
The Passport 8683POS Module is configured for bridging by default. The configuration is set for bridging between two Passport 8683POS Modules with one default VLAN. The Bridge Control Protocol (BCP) is enabled on the Passport 8683POS Module by default.
Note: When the POS link is enabled after a parameter change or a chassis reset, some superfluous traffic may initially be sent out of POS ports before any LCP packets go out. This is normal.
You can also configure bridging for the Passport 8683POS Module for connection to other